Machines not elsewhere specified – Packaging or wrapping – Vacuum or heat seal
Patent
1992-05-28
1993-12-21
Douglas, Alan P.
Machines not elsewhere specified
Packaging or wrapping
Vacuum or heat seal
Patent
active
D03425320
REFERENCES:
patent: D328750 (1992-08-01), Chou
patent: 4598531 (1986-07-01), Ruff et al.
patent: 4941310 (1990-07-01), Kristen
Davis Antoine D.
Douglas Alan P.
Keystone Mfg. Co. Inc.
Ralabate James J.
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