Pocket-size photometer

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front view of a pocket-size photometer, showing my new design;

FIG. 2 is a view of the left long side thereof;

FIG. 3 is a view of the right long side thereof;

FIG. 4 is a view of the upper short side thereof;

FIG. 5 is a view of the lower short side thereof; and

FIG. 6 is a bottom view thereof.

Referenced Cited
U.S. Patent Documents
D183218 July 1958 Kerr et al.
D185693 July 1959 Asano
2472381 June 1949 McMaster
3488125 January 1970 Gugliotta et al.
3709615 January 1973 Blakeslee et al.
Foreign Patent Documents
487065 June 1938 GBX
Patent History
Patent number: D258447
Type: Grant
Filed: Jan 19, 1978
Date of Patent: Mar 3, 1981
Assignee: Compur-Electronic Gesellschaft mit beschrankter Haftung
Inventor: Franz Singer (Munich)
Primary Examiner: Catherine E. Kemper
Attorney: Charles Shepard
Application Number: 5/871,155
Classifications
Current U.S. Class: D16/39
International Classification: D1605;