4 ms·

Patent text [pdf]: https://patentimages.storage.googleapis.com/f1/72/89/634aacb6736f87/US3045596.pdf https://patentimages.storage.googleapis.com/f1/72/89/634aac

Patent text [pdf]: https://patentimages.storage.googleapis.com/f1/72/89/634aacb6736f87/US3045596.pdf https://patentimages.storage.googleapis.com/f1/72/89/634aacb...