Vacuum flask

Details Vacuum flask Vacuum flask

1986-12-09

1989-10-10

Herrmann, Winifred E.

Equipment for preparing or serving food or drink not elsewhere s

Beverage or liquid serving or dispensing

Provided with flow director

D 7 51, D 7 77

Patent

active

D03039056

REFERENCES:
patent: D93437 (1934-10-01), Ball
patent: D117466 (1939-11-01), Bramming
patent: D247547 (1978-03-01), Tuzee
patent: 3476277 (1969-11-01), Rownd

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