Combined time clock and biorhythm calculator

Details Combined time clock and biorhythm calculator Combined time clock and biorhythm calculator

1978-02-01

1980-03-25

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Clock or clock case

Combined

D18 7, D10 15, D1001

Patent

active

D02545357

REFERENCES:
patent: D215158 (1969-09-01), Ozaki
patent: D228189 (1973-08-01), Beitler
patent: D233347 (1974-10-01), Beitler
patent: D236350 (1975-08-01), Stoltz
patent: D242385 (1976-11-01), Hamada
patent: D246105 (1977-10-01), Coons
patent: D246309 (1977-11-01), Nakamura
patent: D248419 (1978-07-01), Beitler
Merchandising (week)-1/79, p. 74, "Mini-Bio", at top right.

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