Combination clipboard and calculator

Details Combination clipboard and calculator Combination clipboard and calculator

1992-04-22

1993-11-23

Holtje, Nelson C.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D18 2, D19 90, D19 91

Patent

active

D03416267

REFERENCES:
patent: D218720 (1970-09-01), Shahan
patent: D279197 (1985-06-01), Hung
patent: D284678 (1986-07-01), Shamoon
patent: D284976 (1986-08-01), Hung
patent: D285094 (1986-08-01), Li
patent: D285392 (1986-09-01), Thompson
patent: D294270 (1988-02-01), Hung
patent: D294282 (1988-02-01), Hung
patent: D295873 (1988-05-01), Chan
patent: D295983 (1988-05-01), Chu
patent: D296220 (1988-06-01), Hung
patent: D298955 (1988-12-01), Zovar
Hong Kong Enterprise Nov. 1987 see circled clipboard/calculator, #769BP-6-6.
Hong Kong Enterprise Mar. 1989, p. 448, see circled calculator.

Affiliated with

Also associated with

Rating

Combination clipboard and calculator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Combination clipboard and calculator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Combination clipboard and calculator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1838502