| 摘要 |
783,066. Hand trucks. GENERAL ELECTRIC CO. March 27, 1956 [March 28, 1955], No. 9542/56. Class 108(1) A dolly for a vacuum cleaner comprises a flanged base 26 having a pair of fixed wheels 56 and one or more castors 58, on the underside and abutments 46, 54 on the upper side so that when a cleaning tool 20 is engaged with the abutments the dolly can be propelled |
