| 摘要 |
503,579. Preventing unauthorized use. CHANDOU, J. D. May 20, 1938, No. 16128. Convention date, Feb. 17. [Class 7 (ii)] The lead to the primary of the induction coil 3 of an engine M is covered by a metal sheath 13 which is attached to a case 8 surrounding the induction coil so as to prevent the unauthorized completion of the engine ignition circuit by the insertion of a lead such as 7. The metal sheath is preferably flexible and it is sutliciently strong to prevent severing with a cutting tool such as pliers. |
