Stair, Ladder, Scaffold, Or Similar Support Patents and Patent Applications (Class D25/62) - Justia Patents Search

Stair, Ladder, Scaffold, Or Similar Support Patents (Class D25/62)

Stepped (12) (Class D25/63)

Ladder (Class D25/64)

Scaffold (Class D25/66)

Sawhorse (Class D25/67)

Element of attachment (13) (Class D25/68)

Stair tread, step or ladder rung (Class D25/69)

Tree climber and seat or the like

Patent number: D248875

Type: Grant

Filed: December 10, 1976

Date of Patent: August 8, 1978

Inventors: Alvin E. Warren, George B. Sweat
Lightweight trench box

Patent number: D252950

Type: Grant

Filed: August 29, 1977

Date of Patent: September 18, 1979

Assignee: AGL Corporation

Inventor: William F. Birchfield
Fire escape platform

Patent number: D261178

Type: Grant

Filed: December 14, 1978

Date of Patent: October 6, 1981

Inventor: Cheyenne A. Reinhard
Fire escape platform

Patent number: D262827

Type: Grant

Filed: November 30, 1979

Date of Patent: January 26, 1982

Inventor: Cheyenne A. Reinhard
Portable detachable step for mounting on bumpers of vehicles

Patent number: D263131

Type: Grant

Filed: February 7, 1980

Date of Patent: February 23, 1982

Assignee: Marco Mfg., Inc.

Inventor: Mark T. Mitchell
Portable detachable step for connecting to the front bumper of a vehicle

Patent number: D263132

Type: Grant

Filed: February 7, 1980

Date of Patent: February 23, 1982

Assignee: Marco Mfg., Inc.

Inventor: Mark T. Mitchell

prev 1 2 3 4 5