Patent · US Expired

Pool water tester

USD256567S · kind S · design

10Cited by

8References

1Claims

0Family size

Assignee

Tintometer GmbH · DE

Inventors

Cay-Peter Voss · Hagen, DE
Manfred Nowak · Solingen, DE

Key dates

Filing date	Nov 17, 1977
Grant date	Aug 26, 1980
Priority date	—
Expiry date	Aug 26, 1994

Classification

Technology area (CPC —)General

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.