@article{6321,
      author = {Birde, Patrick J., and Tsavaris, Ii John E.},
      url = {http://tind.wipo.int/record/6321},
      title = {Some significant changes in US Patent Office practice :  October 1992 - November 1993 /},
      recid = {6321},
      pages = {1 volume ([4] pages) ;},
}