| 摘要 |
<p>920,089. Flasks. OSBORN MANUFACTURING CO. March 23, 1959 [July 9, 1958], No. 43270/62. Divided out of 920,085. Drawings to Specification. Class 83 (1). A flask is of openwork construction so as to offer only slight resistance to flow of sand inwardly during lateral squeezing. The subject matter of the Specification is contained within the original Specification 920,085 which is referred to.</p> |
