Machines not elsewhere specified – Pump or compressor – Gasoline or oil pump
Patent
1988-06-29
1990-08-14
Word, A. Hugo
Machines not elsewhere specified
Pump or compressor
Gasoline or oil pump
D20 28
Patent
active
D03099024
REFERENCES:
patent: D55631 (1920-07-01), McMullan et al.
patent: D56102 (1920-08-01), McMullan et al.
patent: D57424 (1921-03-01), Bruegger
Handbook of Pictorial Symbols by Rudolf Modley, .COPYRGT.1976, pp. 87, 97, 104, 115, 134.
Symbol Sourcebook, p. 148, .COPYRGT.1972.
Hong Kong Enterprise, 9/1985, p. 83.
Coles Doris V.
Word A. Hugo
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