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Class Information
Number: 33/721
Name: Geometrical instruments > Distance measuring > Sounding type > For nongaseous material
Description: Subject matter wherein the material being measured is a liquid or solid fluent.

Sub-classes under this class:

Class Number	Class Name	Patents
33/722	Liquid (e.g. dipstick)	49

Patents under this class:

Patent Number	Title Of Patent	Date Issued
5479724	Method and apparatus for scour depth measurement	Jan. 2, 1996
4702009	Device for measuring the level of a material stored in a tank	Oct. 27, 1987
4651428	Pressurised reservoir closure device	Mar. 24, 1987
4550602	Liquid level marker for container	Nov. 5, 1985
4502126	Apparatus for detecting an amount of liquid remained in a vessel	Feb. 26, 1985
4480470	Gas cap	Nov. 6, 1984
4419236	Water detecting or absorbing device for use in and removal from a tank with a limited opening	Dec. 6, 1983
4335606	Apparatus and method for measuring fluid	Jun. 22, 1982