Recorders Patents (Class 346)

Angle measurement recorder for optical instruments (Class 346/2)

Performance of multiple functions of steam and gas engines (Class 346/3)

Pressure responsive element (Class 346/4)

Record tracer movement responsive to inertia or mass inclination (Class 346/7)

Course (Class 346/8)

Weight recorders, by printing or perforating (Class 346/9)

Recording directly from weight positioned member (Class 346/10)
Weight positioned member and independently movable record controlling followup element (Class 346/11)

Combined with non-recording integrator (Class 346/13)

Combined with non-recording register (Class 346/14R)

Combined with non-recording indicator or alarm (Class 346/17)

Speed indicator or alarm (Class 346/18)

Combined with autographic apparatus (Class 346/19)

Combined with clock (Class 346/20)

Combined with record deleting means (Class 346/21)

Combined with record receiver deposit receptacle or record receiver through chute (Class 346/22)

Combined with fiducial line making (Class 346/23)

Combined with record receiver severer (Class 346/24)

Combined with other non-recording devices (Class 346/25)

Autograph as sole record, time driven element (Class 346/26)

Check receivers, selective compartment (Class 346/27)

Extent of web advance as sole measure of function (Class 346/28)

Multifactor-driven recorder element (Class 346/29)

Time factor (Class 346/30)

Follow-up (Class 346/31)

Rebalancing systems (Class 346/32)

Combined with external recorder operating means (Class 346/33R)

Plural recorders (Class 346/44)

Plural-function recorder, distinguishable recordings (Class 346/45)

Single function recorder, single scale, variable value (Class 346/65)

Single function recorder, duplicate or porportional scale records (Class 346/66)

Single marker (Class 346/67)

Record receiver removal and marker displacement (Class 346/68)

Record element friction eliminating vibrator (Class 346/69)

Record receiver expansion and marker position shift (Class 346/70)

Undulatory record, constant amplitude (Class 346/71)

Float responsive or expansible chamber responsive marker (Class 346/72)

Centrifugal governor responsive marker (Class 346/73)

Electric recording (Class 346/150.1)

Magnetographic (Class 346/74.2)

Thermal recording (Class 346/76.1)

Record receiver deforming (Class 346/77R)

Thermoplastic (Class 346/77E)

Printing, dotting, or punching marker (Class 346/78)

Light or beam recording (Class 346/107.1)

Writers (Class 346/111)

Record receivers and/or driving means therefor (Class 346/134)

Markers and/or driving means therefor (Class 346/139R)

Watchman's or workman's key or key enclosing box (Class 346/144)

Instrument support instrument part support (Class 346/145)

Miscellaneous (Class 346/146)

Foreign Patent Art Collections

Class-related foreign documents (Class 346/FOR000)