Sewer cleaning machine

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Information

Patent Grant
D271436

References
Source

Patent Number
D271,436
Date Filed
Friday, June 26, 1981
43 years ago
Date Issued
Tuesday, November 15, 1983
41 years ago

Inventors
Original Assignees
- EMERSON ELECTRIC CO
Examiners
- Burke; Wallace R.
- Wilder; Lynn
Agents
- Polster, Polster and Lucchesi

US Classifications
- D32 - Washing, cleaning, or drying machine
Field of Search
- US
- D32 14
- 015 1043 SN
- 015 49 R
- 015 79 R
- 015 1043 R
International Classifications
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for sewer cleaning machine, as shown and described.

US Referenced Citations (4)

Number	Name	Date	Kind
D198833	O'Neill	Aug 1964
3958293	Irwin	May 1976
4071920	Block	Feb 1978
4364139	Babb et al.	Dec 1982

Foreign Referenced Citations (1)

Number	Date	Country
2416310	Jun 1975	DEX