Measuring – testing – or signalling instruments – Security or signal instrument or casing – Elevator signal or call unit
Patent
1994-03-10
1995-10-17
Word, A. Hugo
Measuring, testing, or signalling instruments
Security or signal instrument or casing
Elevator signal or call unit
Patent
active
D03632474
REFERENCES:
patent: D268668 (1993-04-01), Bevilaqua et al.
patent: D283687 (1986-05-01), Walser
patent: D328876 (1992-08-01), Raymond
patent: 459083 (1891-09-01), Thompson
patent: 1409831 (1922-03-01), Clouser
Jackson Marcus
Kone OY
Word A. Hugo
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