The horizontal broken line disclosure in
The alternating ellipses and broken line segments represent vent holes and perforations, respectively, and each curved ellipse represents a perforation on the article.
The horizontal broken line disclosure in
The alternating ellipses and broken line segments represent vent holes and perforations, respectively, and each curved ellipse represents a perforation on the article.
Number | Name | Date | Kind |
---|---|---|---|
D53089 | Selsor | Mar 1919 | S |
D59555 | Ladd | Nov 1921 | S |
2469246 | Smicker | May 1949 | A |
3736597 | Artzt | Jun 1973 | A |
4608719 | Lunt | Sep 1986 | A |
4829602 | Harreld et al. | May 1989 | A |
5036547 | Silas | Aug 1991 | A |
D356204 | Derrickson | Mar 1995 | S |
5444873 | Levin | Aug 1995 | A |
D533982 | Graneto, III | Dec 2006 | S |