Tea bag

Details Tea bag Tea bag

1985-05-13

1988-01-19

Spangler, Robert C.

Edible products

Miscellaneous

D 9341

Patent

active

D02937310

REFERENCES:
patent: 1075210 (1913-10-01), Heyl et al.
patent: 2138358 (1938-11-01), Salfisberg
patent: 2149713 (1939-03-01), Webber
patent: 2298420 (1942-10-01), Salfisberg
patent: 2716607 (1955-08-01), Waline
patent: 2791324 (1957-05-01), Knoop et al.
patent: 2824002 (1958-02-01), Hiscock
patent: 2895598 (1959-07-01), Whelan
patent: 3208854 (1965-09-01), Hediger et al.
patent: 3345935 (1967-10-01), Waline
patent: 3373677 (1968-03-01), Petrozzo
patent: 3420675 (1969-01-01), Costas
patent: 3692536 (1972-09-01), Fant

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