Bulldozer

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front elevational view of a bulldozer showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D251845 May 15, 1979 Youpperi et al.
2777219 April 1953 Beant
3869018 March 1975 Muller
3871462 March 1975 Krolak et al.
Other references
  • Construction Methods & Equipment, Jun. 1958, p. 130, #HD-216 (in middle left side).
Patent History
Patent number: D274621
Type: Grant
Filed: Apr 24, 1981
Date of Patent: Jul 10, 1984
Assignee: Kabushiki Kaisha Komatsu Seisakusho (Tokyo)
Inventors: Takehiko Takamatsu (Tokyo), Heiji Yoshizawa (Hirakata), Yoshito Sato (Hirakata), Kazukiyo Chiba (Katano), Tomoyuki Takahashi (Yahata), Yoshimasa Oobora (Hirakata)
Primary Examiner: Catherine E. Kemper
Assistant Examiner: Suzanne N. Gitlin
Law Firm: Armstrong, Nikaido, Marmelstein & Kubovcik
Application Number: 6/257,414
Classifications
Current U.S. Class: Endless Track (D15/24)