Butchering Patents (Class 452)

Crustacean (e.g., shrimp, crab, lobster, crayfish) (Class 452/1)

Shrimp processing (Class 452/2)
Hand tool (Class 452/6)
Vibratory meat removal (Class 452/7)
Meat removal by pressure differential (Class 452/8)
Squeezing meat out (Class 452/9)
Meat removal by centrifugal force (Class 452/10)
Claw lock (Class 452/11)

Mollusk (e.g., oyster, clam, squid, mussel, octopus, snail, slug, scallop) (Class 452/12)

Shirring of casing (Class 452/21)

Combined with sausage stuffing (Class 452/22)
Multiple shirring devices operating simultaneously (Class 452/23)
Shirring head (Class 452/24)
Fluid lubrication of casing (Class 452/27)
Severing into descrete lengths (Class 452/29)

Sausage making (Class 452/30)

Automatic control (Class 452/31)
Casing handling (Class 452/32)
Stuffing (Class 452/35)
Linking (Class 452/46)
Delinking (Class 452/49)
Peeling (Class 452/50)
Sausage link handling (Class 452/51)

Slaughtering (Class 452/52)

Conveying live animals to slaughtering apparatus (Class 452/53)
Restraint or immobilizer (Class 452/54)
Stunning (Class 452/57)
Throat slitting or severing (Class 452/63)
Sticking (Class 452/65)
Anesthetizing or gassing (Class 452/66)
Bleeding (Class 452/67)
Tongue protector (Class 452/70)

Epidermal outgrowth remover (Class 452/71)

Wax-type (Class 452/72)
Singeing (Class 452/73)
Scalding (Class 452/74)
By fluid material impingement (Class 452/81)
Gripping type (Class 452/82)
Power driven (Class 452/86)
Hand tool (Class 452/102)

Viscera processing (Class 452/106)

Eviscerating including means to remove external portion of animal (Class 452/107)
Roe or ova (Class 452/110)
Gizzard (Class 452/111)
Oil gland removers (Class 452/115)
Pressure differential type (Class 452/116)
Gripper or hook type eviscerator (Class 452/117)
Spoon type eviscerator (Class 452/118)
Rotary scrubber type eviscerator (Class 452/119)
Venting or opening preparatory to eviscerating (Class 452/120)
Viscera cleaner (Class 452/123)
Giblet inserter (Class 452/124)

Skinning (Class 452/125)

Temperature modification perfects skinning operation (Class 452/126)
Peeling by movement of workpiece past cutter (Class 452/127)
Gripper or hook type (Class 452/128)
Fluid pressure type (Class 452/131)
Skinning implement (e.g., hand tool) (Class 452/132)

Defatter (Class 452/134)

Deboning (Class 452/135)

Tenderizers (Class 452/141)

Coacting rolls (Class 452/142)
Roll and plate (Class 452/143)
Coacting toothed plates (Class 452/144)
Hand roll (Class 452/145)
Hand manipulated pounder (Class 452/146)

Scoring cutters (Class 452/148)

Carcass subdivision (Class 452/149)

Automatic control (Class 452/150)
Cutting longitudinally through body or body portion (i.e., splitters) (Class 452/160)
While internally supported on a mandrel (Class 452/165)
Extremity remover (Class 452/166)
Loin remover (Class 452/171)

Sinew remover (Class 452/172)

Washer (Class 452/173)

Modelling (e.g., shaping) (Class 452/174)

Conveyer (Class 452/177)

Elevating (Class 452/178)
Orienting (Class 452/179)
Registering (i.e., aligning) (Class 452/180)
Metering (e.g., from bulk supply) (Class 452/181)
Transfer from one conveyor to another (Class 452/182)
Loading or unloading (Class 452/183)
Sorting (Class 452/184)

Support (Class 452/185)

Miscellaneous (Class 452/198)

Class-related foreign documents (Class 452/FOR000)