| Symbols/icons from Xerox 8010 professional workstation manual, converter icons, p. 6, May 1981. |
| Reunion for Windows 3.0 User's guide, Leister Productions, notes icon and icons on right side of page, p. 50, 1993. |
| Mastering Wordperfect 5.1 for Windows, Cybex, scroll bar, p. 33, scroll bar, p. 1058, 1992. |
| Microsoft Publisher User's Guide, Microsoft Corp., connect and page indicator buttons, p. 275, 1991. |
| Family Tree Maker for Windows, Banner Blue, Inc., border color and background color options, p. 310, 1993. |
| Calendar Plus 2.0 for Windows User's Guide, Softkey, next time period and previous time period buttons, p. 116, 1993. |
| Symbol Sourcebook, Van Nostrand Reinhold Co., floor outlet symbols, p. 49, abdoment symbol, p. 188, town meeting symbol, p. 170, 1972. |
| Symbol Sourcebook, Van Nostrand Reinhold Co., beware and grade crossing symbols, p. 146, amplifier symbols, p. 71, autosomal inheritance symbol, p. 55, vista symbol, p. 52, 1972. |
Patent Grant
D392269
